Web-turning device for knitting-machines



L. N. n. WILLIAMS. WEB TURNING DEVICE FOR KNITTING MACHINES.

APPLlCATION FILED JULY 9, !9\9.

Patented May 10, 1921.

2 SHEETS-SHEET I.

Lows MI 0. \A/I kL A 'l 6 L. N. D. WILLIAMS.

'WEB TURNING DEVICE FOR KNITTING MACHINES.

APPLICATON FILED JULY 9.1919.

1,377,239. Patented May 10, 1921.

2 SHEETSSHEET 2- Qwvautoz arts U i T at est tes.

Specification of Letters Patent.

WEB-TURNING DEVICE FOR KNITTING-MACHINES.

. Patented May 10, 1921.

- Application filed July 9, 1919;. Serial No. 309,704.

To all whom it may concern:

Be it known that I, LOUIS N. D. WILLIAMS, a citizen of the UnitedStates, residing in Ogontz, Pennsylvania, have invented a cer tainWeb-Turning Device for Knitting-Machines, of which the following is aspecification.

The object of my invention is to provide a knitting machine with meansfor engaging the web of fabric produced thereby and pushing said webupwardly beyond the end of the cylinder of the knitting machine and intoa point ring which has been applied to the needles, so that when saidpoint ring is removed from the needles to be applied to the sewingmechanism which united the terminal stitches of the web on said ring,the web will occupy its proper position thereon.

This object I attain in the manner hereinafter set forth, referencebeing had to the accompanying drawings, in which- Figure 1 is a verticalsectional view of sufficient of a knitting machine to illustrate myimproved web turner inconnection therewith; i

Fig. 2 is a similar view illustrating the web turner in a differentposition from that shown in Fig. 1; t

Fig. 3 is a horizontal section on the line 3-3, Fig. 1; v t

Fig. 4 is an enlarged view of the upper end of the needle cylinder ofthe machine with the point ring applied thereto and the web thrust partway into said ring, and

Fig. 5 is a top view of the mechanism shown in Fig. 4.

In Figs. 1 and 2 of the drawing, 1 represents the needle cylinder and 2the cam cylinder of an ordinary circular knitting machine in which theknitted web 00, as it is produced, hangs down within the cylinder, asshown by dotted lines. Depending from the fixed bed plate 2 of themachine is a tube 4 which surrounds the tubular web at and has at thebottom inwardly projecting flanges, 5 slotted for the reception andguidance of opposite tubular rods 6 and 6 which surround and are guidedin their vertical movements by stems 7 projecting upwardly from a baseplate 8, said rods 6 and 6 being caused .to move in unison, vertically,by being connected at their lower ends by a transverse bar 9 which, whenthe rods are. depressed, rests upon springs 9 surrounding the stems 7.The bar 9 may be raised and lowered by means of a stem 10 guided in anopening in one of the flanges 5 and provided at the top with a handle11,

whereby it can be readily manipulated.

If movement of the rods 6 and 6 independently of each other isdesirable, the connecting bar 9 may be dispensedwith and each of therods may be provided with an operating stem 10.

The rod 6 has, on its inner side, a projecting cam 6 and on its outerside a projecting cam 6. The cam 6 when on the rise of the rod 6 passesthrough the slot in the guide flange 5 at the bottom of the tube 4,deflects said rod outwardly toward the tube, the cam 6 having a reverseaction, that is to say, when, on the rise of the rod 6, it passesthrough the slot in the guide flange 5, it deflects said rod inwardly orawaylfrom the tube 4.

The rod 6 has, on the inner side, upper and lower cams 6 and 6, and onthe outer side a cam 6*, these cams acting upon the rod 6 in the samemanner as the inner and outer cams of the rod 6 act upon the latter.

The rod 6 has, at its upper end, an enlarged head 12, and the rod 6* isforked at its upper end so-as to present laterally separated andupwardly projecting fingers 13, as shown in Fig. 5.

The rod 12 projects vertically beyond the finger 13 for the reason thatin the case of a stocking web it engages a slack portion of the web inwhich a toepocket is formed, the finger 13 engaging that portion of theweb which constitutes the instep portion of the foot.

When the rods 6 and 6 are in the fully depressed position shown in Fig.1 the inner cams 6 and 6 on said rods move the latter outwardly in thetube 4 so as to clear the cepending knitted web a, but as the rods 6 areraised the outer cams 6 and 6 thereon act to thrust said rods inwardlysothat the upper ends of the same will be carried inwardly in order toclear the lower end of the cylinder 1, as shown in. Fig. 2, and when therods 6 and 6 approach the limit of, their upward movement the inner cam6* Will act upon the rod 6 so as to thrust the forks 13 at the upper endof said rod outwardly toward the inner face of a segmental bar 180 whichis connected to the stripper of that member of the point ring.

In certain cases there is a tendency on the part of stitches which havebeen transferred.

to the points of a point ring to rise upon and slip from some of thepoints during subsequent handling and manipulation of the ring and toovercome this tendency the segmental stripper controlling bar 180 may beprovided with inwardly projecting barbs 185 (Figs. 1 and 5) adapted toengage with the web and hold it taut so as to prevent rising of thestitches upon the points. hen the upper end of the rod 6 is thrusttoward the bar 180 the forks 18 of said rod press the web against thespurs or barbs 185 and thereby insure engagement of the latter with theweb.

W hen the web at has been thrust by the rods 6 and 6 into the positionshown in Fig. 4 that portion of the web which projects beyond the pointring can be readily grasped and the depending portion of the web thendrawn through said point ring so as to properly hang down out of the waywithin the latter during the subsequent handling of said ring.

It may, in some cases, be desirable to adjust verticallyin respect toone another the pusher head 12 and forks 13. One means of accomplishingthis result would beto form a screw thread on the rod carrying the partto be adjusted, and to internally thread said part for adaptationthereto, as shown, for

instance, in connection with the rod 6 and head 12 n Figs. 1 and 2.

In addition to being pro ected upwardly beyond the end of the knittingmachine cylinder the knitted web is also turned inside out so as toproperly accord with the reversed position of the stitches in the pointsof the transfer ring;

I claim:

1. The combination of the needle cylinder of a knitting machine with apusher within said cylinder, and means for actuating said pusher so asto cause it to engage the knitted web depending in said cylinder andpush said web upwardly beyond the end oi the cylinder.

2. The combination of the needle cylinder of a knitting machine with apusher within said cylinder, and means for actuating said pusher so asto cause it to engage the knitted web depending in said cylinder, turnit inside out, and push itupwardly beyond the end of the cylinder.

3. The combination of the needle cylinder of a knitting machine with apusher therein for engaging and ejecting the knitted web, means formoving said pusher upwardly and downwardly within said cylinder, andmeans for simultaneously imparting to said pusher movement from ortoward the axis of the cylinder.

i. The combination of the needle cylinder of a knitting machine withpushers therein disposed at opposite sides of the axis of the cylinder,and means for imparting longitudinal movement to said pushers so as tocause them to engage on opposite sides of the axis of the cylinder, theknitted web depending in said cylinder, and thereby push upwardly beyondthe end of the cylinder those portions of the web acted upon.

5. The combination of the needle cylinder of a knitting machine withpushers therein disposed at opposite sides of the axis of the cylinder,and means for imparting longitudinal movement to said pushers so as tocause them to engage, on opposite sides of the axis of the cylinder, theknitted web depending in said cylinder, and thereby turn said web insideout and push it upwardly beyond the end of the cylinder.

6. The combination of the needle cylinder, a pusher within said cylinderfor acting upon the knitted web to push the same upwardly from thecylinder, a tubular pusher rod, a guide stem therefor, and means formoving said pusher rod longitudinally on said guide stem.

7. The combination of the needle cylinder of a knitting machine, a pairof pushers on opposite sides of the axis of the same' for acting uponthe knitted web depending in said cylinder, means for guiding saidpushers in their longitudinal movement, means for connecting saidpushers so as to cause them to move in unison, and an operating steinfor imparting longitudinal movement said pushers.

8. he combination-0t the needle cylinder .1 -itting machine, a pair ofpushers on opposite sides of the axis of the same for acting upon theknitted web depending in said cylinder, means for longitudinally movingsaid pushers, and means for adjusting the length of one of the pushersin respect to the other.

9. The combination of a knitting machine needle cylinder, at pusher rodfor acting upon the knitted web depending in said cylinder, a camformation on said rod, and a guide therefor which, as the rod is movedlongitudinally through it, also'acts upon the cam formation to causetransverse movement of the rod.

1G. The combination of the needle cylinder 11. The combination of thecylinder of a knitting machine with a pusher therein for acting upon theknitted web depending in said cylinder, said pusher having a forked 5upper end over which the knitted web passes, means for impartinglongitudinal movement to said pusher, and means for also impartingtransverse movement to the forked head of the pusher as it approachesthe termination of its longitudinal movement. 10

In testimony whereof, I have signed my name to this specification.

LOUIS N. D. WILLIAMS.

